Regex for Alphanumeric and ' ', '-', '_', and '.'?

Question

Hey can anyone whip up a regex that i could use to validate strings containing only alphanumeric characters along with ' ', '-', '_', and '.' ?

Thanks

Answer 1

/^[A-Za-z0-9 _.-]+$/

or, where supported,

/^[\w .-]+$/

Answer 2

Try this:

^[a-zA-Z0-9 \-_.]+$

Answer 3

/^[\w. -]*$/

The \w predefined character class includes alphanumeric characters and underscores, and is shorter to type than a-zA-Z0-9_ Also, depending on whether you want to allow empty strings or not, you'll want to use either * or +.

Answer 4

@chaos or anyone else: I am just curious, where isn't \w and \d stuff supported. I use them in Perl and Ruby. I had the idea that they are supported by every language.